Add 27/18 and 90/54
1st number: 1 9/18, 2nd number: 1 36/54
27/18 + 90/54 is 19/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 54 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 18 × 3 = 54,
27/18 = 27 × 3/18 × 3 = 81/54 - Likewise, for the 2nd fraction, since 54 × 1 = 54,
90/54 = 90 × 1/54 × 1 = 90/54 - Add the two like fractions:
81/54 + 90/54 = 81 + 90/54 = 171/54 - 171/54 simplified gives 19/6
- So, 27/18 + 90/54 = 19/6
In mixed form: 31/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/18+90/54 27/36+90/54 81/18+90/54 27/54+90/54 27/90+90/54